Messages in this thread | | | Date | Mon, 25 Jun 2007 09:27:20 +0200 | From | "Antonino Ingargiola" <> | Subject | Re: [patch] CFS scheduler, -v18 |
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2007/6/24, Ingo Molnar <mingo@elte.hu>: > > * Antonino Ingargiola <tritemio@gmail.com> wrote: > > > Anyway, I've discovered with great pleasure that CFS has also the > > SCHED_ISO priority. I may have missed something, but I don't remember > > to have read this in any of the CFS release notes :). For me this is a > > really useful feature. Thanks. > > well, it's only a hack and emulated: SCHED_ISO in CFS is recognized as a > policy but it falls back to SCHED_NORMAL. Could you check how well this > (i.e. SCHED_NORMAL) works for your workload, compared to SD's SCHED_ISO?
To be fair, my workload is not really "critical". I'm used to skip-free audio listening (no matter what) since long time running my audio player with SCHED_ISO. Even in mainline the skips aren't so frequent, but still annoying. I'm using SCHED_ISO for the confidence it gives in providing skip-free audio.
For my modest needs also CFS SCHED_NORMAL has been just fine (in these latest days). I'll report if I can find a more critical workload that can possibly stress CFS SCHED_NORMAL.
Regards,
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